Hydrosphere Review 1

Which best describes water in the channels?

• lake
• river
• aquifer
• wetland

Which of the following contains the largest percentage of freshwater?

• lakes
• groundwater
• glaciers and icecaps
• ground ice and permafrost

Which is Earth's largest source of drinkable water?

• lakes
• rivers
• oceans
• aquifers

Which of the following contains most of the water on Earth?

• the oceans
• watersheds
• the atmosphere
• ice and aquifers

Which factor has the greatest effect on a community's stores of fresh water?

• the location of the nearest ocean
• the average annual rainfall
• the location of the nearest mountain
• the average winter temperature

Why is water from an aquifer more likely to be cleaner than water from other sources?

• because it forms where fresh and salt water meet
• because it receives water directly from precipitation
• because it rises to the surface near the ocean
• because pollutants are filtered by rock and soil deep within earth

Which best describes the characteristics of a river basin?

• the land drained by a river and its tributaries
• the land formed when rivers create estuaries and marshes
• the land at the mouth of a river where water flows into the ocean
• the land form as a result of a river flooding

Which would greatly REDUCE local water availability?

• a flood
• drought
• hurricane

Which percentage represents the amount of Earth's water that is found in oceans?

• 3%
• 71%
• 97%

Which will result if there is increased upwelling in a coastal area?

• more aquatic life
• less nutrients
• higher temperatures
• fewer nitrates